.peripheral {
  display: flex;
  width: calc(100vw - 60px);
  height: 100vh;
}
.edit,
.operation,
.preview {
  box-sizing: border-box;
  overflow-y: auto;
}
.edit {
  width: 580px;
  height: 100%;
  border-right: 1px solid #bebebe;
  padding: 30px 0 0 10px;
  background: rgb(134, 150, 110);
}
.operation {
  width: 150px;
  padding: 0;
}
.preview {
  flex: 1;
  border-left: 1px solid #bebebe;
  border-right: 1px solid #bebebe;
  margin-right: 5px;
  .content {
    border: 1px solid #bababa;
  }
}
